You know that if we want to execute another script from the current script directory, we can call it through @@, but sometimes we want to know the current path exactly, for example if we want to spool something into the file in the same directory.
Unfortunately we cannot use “spool @spoolfile”, but it is easy to find this path, because we know that SQL*Plus shows this path in the error when it can’t to find @@filename.
So we can simply get this path from the error text:
rem Simple example how to get path (@@) of the current script.
rem This script will set "cur_path" variable, so we can use &cur_path later.
set termout off
spool _cur_path.remove
@@notfound
spool off;
var cur_path varchar2(100);
declare
v varchar2(100);
m varchar2(100):='SP2-0310: unable to open file "';
begin v :=rtrim(ltrim(
q'[
@_cur_path.remove
]',' '||chr(10)),' '||chr(10));
v:=substr(v,instr(v,m)+length(m));
v:=substr(v,1,instr(v,'notfound.')-1);
:cur_path:=v;
end;
/
set scan off;
ho (rm _cur_path.remove 2>&1 | echo .)
ho (del _cur_path.remove 2>&1 | echo .)
col cur_path new_val cur_path noprint;
select :cur_path cur_path from dual;
set scan on;
set termout on;
prompt Current path: &cur_path
I used here the reading file content into variable, that I already showed in the “SQL*Plus tips. #1”.
UPDATE: I’ve replaced this script with a cross platform version.
Also I did it with SED and rtrim+ltrim, because 1) I have sed even on windows; and 2) I’m too lazy to write big PL/SQL script that will support 9i-12c, i.e. without regexp_substr/regexp_replace, etc.
But of course you can rewrite it without depending on sed, if you use windows without cygwin.
PS. Note that “host pwd” returns only directory where SQL*Plus was started, but not executed script directory.
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